CN1022324C - Anhydrous crystal sodium salt of 5-chloro-3-(2-thenoyl)-2-oxyindole-1-carboxamide - Google Patents

Anhydrous crystal sodium salt of 5-chloro-3-(2-thenoyl)-2-oxyindole-1-carboxamide Download PDF

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CN1022324C
CN1022324C CN88100555A CN88100555A CN1022324C CN 1022324 C CN1022324 C CN 1022324C CN 88100555 A CN88100555 A CN 88100555A CN 88100555 A CN88100555 A CN 88100555A CN 1022324 C CN1022324 C CN 1022324C
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thenoyl
chloro
oxyindole
sodium salt
anhydrous
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CN88100555A (en
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道格拉斯·约翰·梅尔德伦·艾伦
布赖恩·托马斯·奥尼尔
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Pfizer Inc
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D409/00Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/02Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
    • C07D409/06Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/04Centrally acting analgesics, e.g. opioids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

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  • Veterinary Medicine (AREA)
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  • Pharmacology & Pharmacy (AREA)
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  • Bioinformatics & Cheminformatics (AREA)
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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
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Abstract

Anhydrous, crystalline sodium salt of 5-chloro-3-(2-thenoyl)-2-oxindole-1-carboxamide having advantageous properties for formulation as an analgesic or antiinflammatory agent.

Description

Anhydrous crystal sodium salt of 5-chloro-3-(2-thenoyl)-2-oxyindole-1-carboxamide
The objective of the invention is to a kind of anhydrous, crystal type 5-chloro-3-(2-thenoyl that anodyne or antiphlogistic drug formula of medicine are had the novelty of favorable properties)-sodium salt of 2-oxyindole-1-methane amide.
Kadin, United States Patent (USP) 4,556, the above-mentioned 5-chloro-3-(2-thenoyl of the chemical formula shown in disclosing for No. 672 below having)-2-oxyindole-1-methane amide.
Figure 88100555X_IMG1
(the maybe salt that can be used for medicinal purpose) is as a kind of particularly preferred compound as pain relieving or antiphlogistic drug.The sodium salt of the formula I compound in the patent documentation disclosed herein is separated with semihydrate or hydrate.Further drying just makes monohydrate become anhydrous compound.We have determined that now formed several hydrates all are the mixture with variform (for example unbodied and acicular crystallization) usually.These different hydrate types have flowability and the static behaviour that causes the prescription difficulty usually.We also determined heat up and/or decompression under be unbodied and moisture absorption by the anhydrous product of preliminarily dried gained.Therefore wish to find a kind of these difficult crystal type sodium salts that overcomes very much.
We have found a kind of 5-chloro-3-(2-thenoyl of anhydrous, crystal type now)-sodium salt of 2-oxyindole-1-methane amide, it has valuable and not conspicuous character.Therefore this salt is easy to handle and be deployed into dosage form such as capsule.It is non-hygroscopic even reach at 90% o'clock in relative humidity and still keep stable dosage form.It dissolves sooner than the salt of hydration when it is pressed into tablet.
According to above-cited, this paper as the reference data, previously by the disclosed patent of Kadin, normally this favourable crystal salt is mixed with and as a kind of anodyne.
Be when room temperature, can prepare compound of the present invention simply unexpectedly by the sodium salt that is stirred in the hydrate type in the acetonitrile.Having observed this transformation does not have to carry out in the presence of other solvents when room temperature, but can also carry out at leisure in the toluene that refluxes.
In case find that the present invention is easy to carry out.The sodium salt of the compound of formula I preferably at first comes out with its isolated in form of hydrate in this method, stirs simply in acetonitrile then to obtain useful, anhydrous, nonhygroscopic crystal type sodium salt of the present invention.The temperature of this transformation is not critical in acetonitrile, but is easy to carry out when room temperature, removes heating or freezing required energy cost from.This on the other hand transformation can be carried out in toluene under the situation of reflux temperature with dean stark trap (Dean-Stark trap) azeotropic water removing of toluene, but and is not easy to carry out.Because lower boiling benzo is not really effective in this method, what produce usually is unbodied anhydrous product, can think that therefore higher temperature is critical for the formation of anhydrous crystal when the solvent of application except that acetonitrile.
Crystal salt of the present invention it is characterized in that it as the specific physical character shown in hereinafter.Above quoting previous common preparation and the application of disclosed this salt by Kadin.Hereinafter for example understand a kind of distinctive, stable and in the clinical useful capsule prescription that comprises salt of the present invention.
Following Example is to be used to the present invention is described and can not to be interpreted as limitation of the present invention, in this scope and its spirit many variations can be arranged.
Preparation method 1
5-chloro-3-(2-thenoyl)-sodium-salt hydrate of 2-oxyindole-1-methane amide
According to Kadin, United States Patent (USP) 4,556, the hydrate of No. 672 example 10 preparation titles.Use another kind of method, with 5-chloro-3-(2-thenoyl)-2-oxyindole-1-methane amide (example 8 of above-mentioned Kadin; 51.2g, 0.16mol) be suspended in the 400ml acetonitrile at 40 ℃, simultaneously with sodium bicarbonate (14.1g., 0.168mol) be dissolved in the 200ml water and heat to 40 ℃.The aqueous solution that this is warm is added in this warm acetonitrile suspension in 20 minutes, has small amount of foam to occur during this period.Stir resulting solution at 40 ℃, use the 5g decolorizing with activated carbon, stirred 30 minutes and filtered the acetonitrile of using 50ml again: water (1: 1) washing at 25 ℃.The filtrate that merges is concentrated by steam bath under vacuum with washing lotion,, be cooled to 25 ℃ and pass through first product of filtered and recycled when replacing acetonitrile with 200ml water when final volume is about 500ml.With this solid of 50ml water washing.The mother liquor that merges and washing lotion gas carried to 400ml generate second batch of product, after the drying, the heavy 35.76g(of firstling moisture 6.4% under air) and second crowd of heavy 16.77g(of product moisture 6.2%) be 90% through the gauged output of water content.The water content of calculating monohydrate is 5.0%, demonstrates 4 endotherms (about 110,150,237 and 255) with these two batches of products of determine with dsc method.
Example 1
The 5-chloro-3-(2-thenoyl of anhydrous, crystal type)-sodium salt of 2-oxyindole-1-methane amide.
5-chloro-3-(2-thenoyl with hydration)-sodium salt of 2-oxyindole-1-methane amide (52.5g is according to the another kind of method preparation of preparation method 1) stirs under room temperature in the acetonitrile of 52.5ml, reclaims title product after filtration, with the washing of 50ml acetonitrile; And obtain 46.7g(95% in 55 ℃ of dryings in a vacuum) title product; Xln under polarization microscope; In 50-300 ℃ scope, use determine with dsc method, be presented at 255 ± 2 ℃ and locate an independent endotherm clearly.
Analytical calculation C 14H 8ClN 2O 3SNa:
C,49.06;H,2.35;N,8.18;S,9.35;Cl,10.34;
Sulfated ash, 20.72; H 2O, O; At 100 ℃ of drying loss in vacuum, O.
Measured value
C,48.85;H,2.39;N,8.22;S,9.54;Cl,10.43;
Sulfated ash, 20.58; H 2O, 0.07; In 100 ℃ of drying loss in vacuum, 0.07.
Form tangible contrast with the hydrate type, the hydrate type is orange, and present anhydrous sodium salt is yellow.
The title compound of the sample (preparation method 1) of hydrate type and current anhydrous type is broken into fine particle and, is at diameter with 2000 pounds end pressure J<1,2〉inch mould in be pressed into small pieces.During each compressing tablet, stamping machine is removed and covered the bottom of pressing mold, so that the dissolution rate test is carried out in the monoplane of known surf zone with paraffin.The mould that will contain the pressurized medicine is put into a dissolving drag that has blade by American Pharmacopeia, make blade be in the tablet exposed surface on the 2.5cm place, at water with at 0.5M borate buffer solution (pH9.0) among both, with regard to inner dissolution rate (this is an important factor to the drug effect of oral dosage form), fast about three times of anhydrous type than hydrate.
Anhydrous type demonstrates the slight tendency that becomes hydrate.Even at the wet granulation of the applied water of following capsular preferred preparation on, also can not form hydrate (not obtaining proof) by not becoming orange color change by yellow
Example 2
Contain anhydrous 5-chloro-3-(2-thenoyl)-the oral capsule dosage type of 2-oxyindole-1-methane amide sodium salt
With following composition mix,, be dried to Karl Fischer at last and contain moisture 5% with the wet granulation of 875ml water;
5-chloro-3-(2-thenoyl)-2-oxyindole-1-first
Acid amides 600.00g
(561.52g.A
Microcrystalline Cellulose
(Avicel PH101) 885.75g.
The W-Gum 236.25g. of hydration
Povidone(PVC-30) 105.00g.
(* A is meant the activity equivalent of free acid)
That to do then, wet particle pulvis further with following composition mix,
Sodium starch glycollate
(Explotab) 210.00g.
Magnesium Stearate 42.00g.
Sodium lauryl sulphate 21.00g.
The mixture of the making preparation of using filling weight and be 375mg on a normally used capsule filling machine contains the soft gel capsule of 100mg.A.When to the dog oral administration medicine supplying,, demonstrate 89% high bioavailability by blood levels, so this class capsule shows extremely good bioavailability with the comparison of offeing medicine with oral liquid.

Claims (1)

1, a kind of method of sodium salt of 5-chloro-3-(2-the thenoyl)-2-oxyindole-1-methane amide for preparing anhydrous, crystal type is characterized in that the hydrate of corresponding this compound is stirred with acetonitrile.
CN88100555A 1987-02-02 1988-02-02 Anhydrous crystal sodium salt of 5-chloro-3-(2-thenoyl)-2-oxyindole-1-carboxamide Expired - Fee Related CN1022324C (en)

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USPCT/US87/000201 1987-02-02
USPCT/US87/00201 1987-02-02
PCT/US1987/000201 WO1988005656A1 (en) 1987-02-02 1987-02-02 Anhydrous, crystalline sodium salt of 5-chloro-3-(2-thenoyl)-2-oxindole-1-carboxamide

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US4861794A (en) * 1988-04-13 1989-08-29 Pfizer Inc. 3-substituted-2-oxindole-1-carboxamides as inhibitors of interleukin-1 biosynthesis
US4853409A (en) * 1988-04-13 1989-08-01 Pfizer Inc. 3-substituted-2-oxindole-1-carboxamides for suppressing T-cell function
DE68923673T2 (en) * 1988-10-18 1996-01-18 Pfizer Pro-drugs of anti-inflammatory 3-acyl-2-oxindole-1-carboxamides.
SK590689A3 (en) * 1988-10-18 1996-03-06 Pfizer 3-aryl-2-oxindole-1-carboxamides and method of their preparation
US5059693A (en) * 1989-10-06 1991-10-22 Pfizer Inc. Process for making 3-aroyl-2-oxindole-1-carboxamides
US5006547A (en) * 1990-03-19 1991-04-09 Pfizer Inc. Tenidap as an inhibitor of the release of elastase by neutrophils
US5008283A (en) * 1990-03-19 1991-04-16 Pfizer Inc. Use of tenidap to inhibit activation of collagenase and to inhibit the activity of myeloperoxidase
US5122534A (en) * 1991-02-08 1992-06-16 Pfizer Inc. Use of tenidap to reduce total serum cholesterol, ldl cholesterol and triglycerides
DE4111305C2 (en) * 1991-04-08 1994-12-01 Mack Chem Pharm Pharmaceutical preparation for rectal administration, which contains a 2-oxindole-1-carboxamide derivative
WO1997022605A1 (en) * 1995-12-19 1997-06-26 Pfizer Inc. Stable, long acting salts of indole derivatives for the treatment of joint diseases
EP0826685A1 (en) * 1996-08-21 1998-03-04 Pfizer Inc. Stable, long acting salts of carboxamides for the treatment of joint disease
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US7407195B2 (en) 2004-04-14 2008-08-05 William Berson Label for receiving indicia having variable spectral emissivity values
US7651031B2 (en) 2004-10-25 2010-01-26 William Berson Systems and methods for reading indicium
US7728726B2 (en) * 2005-01-14 2010-06-01 William Berson Radio frequency identification labels
US7931413B2 (en) * 2005-01-14 2011-04-26 William Berson Printing system ribbon including print transferable circuitry and elements
US7619520B2 (en) * 2005-01-14 2009-11-17 William Berson Radio frequency identification labels and systems and methods for making the same
US7621451B2 (en) * 2005-01-14 2009-11-24 William Berson Radio frequency identification labels and systems and methods for making the same
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MA21171A1 (en) 1988-10-01
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OA08710A (en) 1989-03-31
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